It could look ok but we are doing something similar (one wall of shower will be scallop navy blue tiles) and wanted the scallop to stand out. We decided to do the rest of the walls elongated white subway tiles.

Beautiful tile choices, you sound like me....love so many different styles. I agree though, the two tiles look as if they belong in different rooms. They are quite different style wise and compete with each other. When you have such beautiful tile, let it shine and perhaps pick a simpler style for the flooring.